This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 7 |
| 3 | 23 |
| 4 | 379 |
| 5 | 17713 |
| 6 | 102334157 |
| 7 | 3416454622906709 |
| 8 | 1100087778366101933 |
| 9 | 468340976726457153752543329995931 |
| 10 | 40934782466626840596168752972961528246149 |